Answer:
300 dollars
Step-by-step explanation:
250 x 0.2= 50
250 + 50=300
Answer:
the solution is (-1, 2)
Step-by-step explanation:
Let's solve the system
(3x + 4y = 5)
(2x - 3y = -8)
using the method of elimination by addition and subtraction. Notice that if we multiply all terms of the first equation by 3 and all terms of the second by 4, y as a variable will temporarily disappear:
9x + 12y = 15
8x - 12y = -32
-----------------------
17x = - 17, so x = -1.
Replacing x in the second equation by -1, we get:
2(-1) - 3y = -8, or
2 + 3y = 8,
or 3y = 6. Thus, y = 2, and the solution is (-1, 2).
Answer:
Step-by-step explanation:
Girls:Boys = 3 : 2
Total students = 25
Girls = (3/5) * 25 = 15
Boys = (2/5) * 25 = 10
(2, 8), (2, 5)
Just subtract the numbers that aren't the same.
8 - 5 = 3
So the distance is 3.
The prime factorisation of 81 is 3^4(because 3*3*3*3 four times =81)
do not change the rest 3^4 m^2 x^3
